vessels
Maritime fleet intelligence with governed decision trails
vessels provides fleet monitoring, sanctions screening, dark-vessel detection, ownership-graph analysis, and voyage analytics for trade compliance and fleet operations. Every consequential alert is backed by a cryptographic audit receipt through the a11oy governed execution fabric. The AIS feed in the demo is simulated.
What vessels is
vessels is maritime fleet intelligence for trade compliance and fleet operations: fleet monitoring, sanctions screening, dark-vessel detection, ownership-graph analysis, and voyage analytics. Every consequential alert and recommendation is backed by a cryptographic audit receipt through the a11oy governed execution fabric. Source: vessels README (main HEAD 20f28c3). The demo AIS feed is simulated.
Fleet Monitoring
Tracks fleet position and status from a simulated AIS feed; not real-time tracking and not insurable telemetry.
Sanctions Screening
Screens vessels and owners against sanctions lists; flags matches for human review.
Dark-Vessel Detection
Detects AIS gaps consistent with dark-vessel behaviour over the simulated feed.
Ownership Graph
Resolves beneficial-ownership graphs to surface compliance risk across voyages.
Fleet Console
The vessels fleet console runs as the live Docker Space vessels-app. The console surfaces fleet status, sanctions hits, dark-vessel alerts, and ownership graphs — each consequential alert carries a DSSE receipt.
Simulated Feed
The demo runs on a simulated AIS feed — it is not real-time vessel tracking and not insurable telemetry. The simulation drives the same console and decision-trail logic a production feed would, so the governed receipt path is exercised end-to-end. Source: vessels README.
DSSE Receipts
Every consequential alert emits a DSSE (Dead Simple Signing Envelope) receipt into the a11oy governed execution fabric, giving a tamper-evident decision trail. Note: the UDS container image ghcr.io/szl-holdings/vessels:uds-v0.3.0 is STAGED — a docker push is required before the UDS bundle is functional. Source: vessels README.
Live App
The live vessels-app Docker Space runs the fleet console in your browser over a simulated AIS feed.
vessels vs Maritime Tooling
This table compares vessels against mainstream approaches on auditability dimensions. Sources cited in footer.
| Feature | AIS aggregator | Sanctions DB | BI dashboard | vessels |
|---|---|---|---|---|
| Cryptographic receipt per alert | ✗ | ✗ | ✗ | ✓ DSSE-wrapped |
| Sanctions + dark-vessel + ownership | ✗ | ~ partial | ✗ | ✓ unified |
| Governed decision trail (a11oy) | ✗ | ✗ | ✗ | ✓ native |
| Honest simulated-feed labelling | ~ varies | ✗ | ✗ | ✓ explicit |
| Ownership-graph traversal | ✗ | ✗ | ~ partial | ✓ native |
Sources: IMO · DSSE · vessels source
What vessels is NOT
Precision matters. vessels has a specific, bounded scope. These are explicit non-claims, in alignment with SZL Holdings Doctrine v7.
Not real-time tracking
the demo feed is simulated; it is not live AIS and must not be used for navigation.
Not insurable telemetry
vessels output is not certified telemetry and carries no insurance warranty.
Not custodial
SZL Holdings holds no keys or data; receipts emit in the operator environment.
Not a sanctions authority
vessels screens against lists but does not issue or adjudicate sanctions.
Not an LLM
no model weights, no inference — screening and detection are deterministic.
Not production-hardened alone
research-grade; the UDS image is STAGED pending docker push.
Citations
- [1] vessels source (szl-holdings/vessels) — github.com/szl-holdings/vessels. Maritime fleet intelligence, main HEAD 20f28c3.
- [2] vessels Zenodo DOI — doi.org/10.5281/zenodo.20434276. vessels / SZL Holdings thesis.
- [3] vessels-app (live Space) — huggingface.co/spaces/SZLHOLDINGS/vessels-app. Live Docker fleet console.
- [4] DSSE — Dead Simple Signing Envelope — github.com/secure-systems-lab/dsse. Receipt envelope format.
- [5] SLSA v1.0 levels — slsa.dev/spec/v1.0/levels. SLSA L1 honest.
- [6] Doctrine v7 — github.com/szl-holdings/.github/blob/main/DOCTRINE_V7.md. §10 — every claim cites a verifiable receipt.